Wall Street higher on positive jobs data; tech stocks rebound

U.S. stocks moved higher on Thursday afternoon, helped by strong results from Alibaba, a rebound in tech stocks and as upbeat jobless claims data indicated the labor market was improving despite moderate economic growth. The three major indices were poised to end two straight sessions of losses, exacerbated on Wednesday by Federal Reserve Chair Janet Yellen's comments that equity valuations "generally are quite high". The number of Americans filing new claims for unemployment bene